Combined type-writing and computing machine.



B. C. STICKNEY. COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION HUID JULY 9. l9l3- Patented Mar. 19, 1918.

4 SHEETS-SHEET I.

WEE/S323 |NVENTOR= B. C. STICKNEY. COMBFNED TYPE WRITING AND comrurms MACHINE.

APPLICATION HLED JULY 9.1913- mm mm H m H m P 4 2 9 5 1 ms 6 k m M M 1 m m w I I N m Q \Q S g l. g g s T x; mm Q u k M Mn Q g 0 MR 0 0 m mi EEEEELF INVENTOR WITNESSES M2 MM B. C. STICKNEY. COMBINED TYPE WRITING AND COMPUTING MACHlNE.

APPLICATION FILED JULY 9,1913.

Patented Mar. 19, 19l&

4 SHEETS-SHEET 3.

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ii YI w Tr B. C. STICKNEY. commie TYPE wmrme AND COMPUTING MACHINE.

APPLICAHON FILED IULY 9. NH.

Patented Mar. 19, l9l&

4 SHEETS-SHEET 4.

WITN E$$E$= h A MZ, zzz w UNITED STATES PATENT OFFICE.

G. strontium 0F ELIZABE'IZH}, NEW JERSEY, ASSIGNOB, BY MESNE ASSIGN- MEN'JIS, 'IO' UNDERWOOB GOMPUTINfi MACHINE COMPANY. 01? NEW YORK, N, Y., A

comommou: on NEW YORK.

GDM BIN'ED. TYPE-.WRITING AND! COMPUTI G MAQHINE.

Anpllcationfiled July 9, 1913, Serial No. 777,982.

liq-all whom it may concern:

Be it known that I, BURNHAM. G. STICK- HEX, 8,. citizen'cgf the United States, residing in Elizabeth, in the county of Union and State of, New Jersey, have invented certain new and useful; Improvements in Combined Type-writing and tjomputing Machines, of which the following is a specification.

This. invention relates to a new and improved means for preventing the carrying on in different computing zones or columns, a type of computation other than that needed for the nature of the work, and is an improvement on an application of Hans Hanson, No. 626,550, filed May 11, 1911.

The particular machine shown herewith to illustrate the invention is of the Underwood-Hanson type embodying a combined typewriting and computing mechanism. In addition the numeral keys set individuals of a nest of pins by a method of cross-selection, so that the pins set correspond to the values of the numeral keys struck and to the denominational columns in which the pins are set. For subtraction, the subtracting mechanism is adjusted so as to set the pins according to the complements of the numeral keys struck, usin I nine as a base or measure in this decima system; In either case, the members bearing the pins always rotate computing wheels in the same direction so as to run up. either an adding or a subtracting computation.

Other features necessary to a normal subtracting operation in this type of machine, such as the setting of 9 pins and the giving of an extra step of rotation to the units or cents wheel, are also taken care of.

It might hap en in such a machine where the operative epends on his memory for changing from one type of computation to another, that he would forget to shift at the proper time and thus add when he should subtract. Hence the object of this invention, which is to warn the operative when a subtracting zone is reached and to prevent the operation of. the numeral keys until the mechanism has been set for subtraction.

In carrying out this object, the mechanism Specification of Letters Patent.

Patented. Mar. is, 1918..

is so set that when about to typewrite in a computing zone or column in which it is necessary to subtract in the particular type of work being done, a locking bar' will e automatically brought into play to lock all of the numeral keys against operation and throw up a warning sign showing that. it is necessary at this point to subtract. 'he numeral keys will be locked against furt er actuation, and thus the computing mechanism be rendered incapable of operation until the subtraction key is actuated to set the mechanism for subtraction.

In passing from this computing zone or column in which a subtracting operation is carried on, there is also an automatic return to an adding condition of the computing mechanism. Means is provided to throw the computing mechanism back to a condition to add assoon as any tabulating key is struck, to bring the traveling carriagc of the typewriting mechanism to the next computing zone orcotumn, which may be an adding one.

Other features and advantages will hereinafter appear.

In the accompanying drawings:

Figure 1 is a vertical section taken from front to rear of the machine, with parts omitted for the sake of simplicity and showing the mechanism in a normal inactive condition with the lock for the numeral keys dormant or ineffective and with the computing mechanism set for addition.

Fig. 2 is a detail view of the tripping mechanism which controls the release of a latch for the automatically-acting lock which prevents an actuation of the numeral kevs in a subtracting zone or column until after the subtraction setting key has been actuated. The parts are shown with the trip just being actuated to release the latch.

Fig. 3 is a view of certain of the parts shown in Fig. 2, showing. however, the tvpewriter carriage moving in the return direction and passing idly by the tripping mcch amsm.

Fig. 4 is a skeleton detail view in elevation. showing the lock for the numeral keys in the act of being released after having come into play in a subtracting zone or column by an actuation of the subtraction setting key, which at the same time adjusts the pin-setting mechanism for subtraction setting.

Fig. 5 is a detail view of certain of the parts shown in Fig. 4, and showing the sub traction setting mechanism in the act of being released by the actuation of a tabulating key so that it may return to its normal adding condition.-

Fig. 6 is a rear view in elevation partly broken away to show the underlying structure and showing the parts in a normal adding condition without the numeral key lock being in play.

Fig. 7 is a skeleton top plan view with parts ienioved to simplify the showing and illustratin the relation of the subtraction key and the tabulating keys to the locking and releasing mechanisms.

Fig. 8 isa detail top plan view of the pin-setting linkages illustrating the adding and subtracting arms and their relation to the different linkages.

Fig. 9 is a detail vertical section of the pin-setting mechanism illustrating the means for adjusting the same for a subtracting action.

Referring more articularly to the separate parts of' this invention as embodiedin the form shown in the drawings 1 indicates numeral keys and 2 alphabet keys, which are mounted on key-levers 3 arranged to rock-bell cranks 4 and thus swing type-bars 5 up rearwardly against the front side of a platen 6 mounted to rotate on a carriage 7. The carriage 7 has a step-by-step movement controlled at the actuation of each of the keys-by an escapement mechanism indicated in general at 8. This escapeineiit mechanism includes a rack bar 9 movably mounted on the carriage 7 by means of a pair of arms 10 pivoted to the carriage. The rack bar 9 meshes detachably with a pinion 11 mounted on the same shaft as a ratchet wheel 12, which is controlled in its movement by dogs 13, the latter being osizillated at the actuation of any of the numeral or alphabet keys by means of a universal bar 14, which in turn is actuated by a heel 15 formed on each of the type-bars 5.

In addition to the step-by-step movement of the carriage 7, provision is made for a jump or tabulating movement. For this purpose, there are provided tabulating keys 15 mounted on key-levers 16, which are pivoted intermediate their ends on a rod 16 and support thrust bars or plungers 17 at their rear ends. These thrust bars 17 are arranged to be projected by their associated keys into the path of tappets or stops 1S adjust-ably mounted on a rack 19 carried by the carriage 7. \Vhen any one of the tabu- 'j ack'sfai'e pivoted intermediate their endsi-ls lating keys 15 is depressed and thus when any one of the thrust bars 17 is raised, the carriage 7 will be disconnected from the cscapement mechanism 8 by means of a uni versal lever 20, which-engages in a series of notches 21 provided iii the "plunger-s 17. This lever 20 when rocked by one 'ofthe plungers 17, pulls down one link 22, which rocks a lever 23 mr 'ingat its front end a roller 24, which is arranged to lift the rack bar 9 out of mesh with the pinion 11.

In addition to actuating the type action of the t'ypewrit'ing mechanism, the numeral keys 1 are arranged to control a pin-setting mechanism indicated in general at 25, which sets" pins 26 mounted 'o'n'a series of bars'27, which are provided at their front ends with racks 28 engaging with 'pinions 29 for dial or computing wheels 30 aving numbers on their peripheries arranged to be exhibited through a sightopening 31 in the casing 32 of the computing mechanism.

In order that any one of the pins 26 on the bars 27 maybe set, the bar: carrying the pin must be' raised above itsfell'ow's', as' the pinsetting [mechanism 25 has but a limited sphere of action. Forfthis'pu'rpose, there is provided on the'carriage, a t'appet 33, which, during a' traveling movement of the carria e,conies successively into engagement wit individuals of a series of jacks 34 one for each of the computing'fwheels 30. These 0 thathvhen, en aged by the tappet 33 t will be rocke to'., depre ss;thrust links 35, which are connected to transposition linkages 36, which in turn raise the rack bars 27. The linkages36 invert the order of action of the rack'bars 27 from that of the jacks 34, so that theprogressive movement of the carriage, which travels from right to left, may correspond to the progressive action of the computing, which travels from left to right of the computing wheels 30.

The pin-setting mechanism 25 not only sets the pins 26 for addition but is also capable of setting them for subtraction. The particular arrangement and action of the pin-setting mechanism will now be described.

Referring to Figs. 1, 8 and 9, it will be seen that each of the numeral keys 1 is provided with a thrust link 37, which is arranged to engage an arm 38 on a rock shaft 39, there being one of these arms and one of these rock shafts for each of the numeral ke s from 1 to 9.

Iounted on the shafts 39, there are pro vided addition arms 1*, 2", 3", 4', 5, 6", 7. 8 and 9*. Each of these arms is arranged to engage, when the associated arm 38 is (10- pressed. with the corresponding one of a series of wrist-piiis, 1, 2 3"", 1, 5 6, 7 8 and 9 on a series of pin-setting linkmechanism is adjusted to set ages 1, 2 3, 4 5, 6 7 8" and 9'. Each of'these linkages, as will be seen by reference to Fig. 9, comprises an'upper reach 40, and a lower reach 41 parallel to the upper reach and connected thereto by a pair of hell crank levers 42, so that the motion of the reaches 40 and 41 will always be parallel. These linkages are held normally in close collapse with the lower reach 41 raised, by means of one or more springs 44. \Vhen, however, one of the rock shafts 39 is rotated by the engagement of one of the thrust links 37 with the associated arm 38, then the lower reach 41 will be depressed to engage the opposite pin 26 on the particular bar 27 which happens to be raised by the action of the tappet 33 engaging one of the jacks 34. That is to say, the pin corresponding to the particular numeral key struck will be set on the particular denominational bar c0rresponding to the denominational column being written in on the worksheet on the platen.

In order to subtract, the pin-setting ms corresponding to the complements o the numeral keys struck instead of their direct values. That is to say, all of the rock shafts 39 are mounted to slide in a frame and can be shifted to remove all of the arms 1 2-, 2 4-, 5, 6-, 7 8* and 9.out of eugagemenl \viththe wrist pins 1"", 2'33, 4"", 5 6 7, 8 and S at the same time moving a series of arms 1 2 3 4 55, 6 7 and 8 into engagement with wrist pins 1 2 3". at, 5 6 7' and S on the pin-setting linkages S, 7', 6 5 4 3, 2 and 1, respectively. The arms 1 2 3 4 5-. ('r. 7 and 8 are on the shafts 39 which correspond to their number and the numbers of the numeral keys which actu- :lt'c-i these shafts. It will be noted in passing that the arm corresponding to the numeral key 5, is used for both addition and subtraction, inasmuch as it lies between ihe 7i" and i linkages which correspond to the adding of five and the subtracting of Eire. respectively. There is no subtraction arm provided for the 9 set as the comp enient nt' nine is zero in this system.

in addition to the arms just. mentioned, each of the drafts 39 carries a restoring arm indicated successively to correspond with the iltl'i'fl'titlfli' numeral keys 1, 2, 3, 4

' 3, G. T. H" and 9, which at th shifting of the rock shafts 39 in the frame 45, are brought into engagement with u'rist pins RW on "f pin restoring linkage 46, act ing similarly to the linkages 1 2 3 4 3'. T" and S except that it restores the i) pins which have been previously set up. ill be described hereinafter.

For the purpose of setting for subtraction, there is provided a subtraction rod 49 (Fig.

1 which may be moved against the tension of a, spring 48 to oscillate a lever 53 secured to a rock shaft 54 and engaging a shifter bar 56 pivoted at opposite ends, of its uptper edgei as at 55. The shifter bar 56 exten s into a series of alined slots 58 provided in each of the. pin-'sett-ingrock shafts 39, so that when the subtraction rod 49 is thrust rearwardly, it will swing the lower edge of the shifter bar 56 forwardly. and thus shift all of the rock shafts-39 forwardly to a position such that the arms 1*, '2", 3-, 4, 5, 6 7 8 and 9 are shifted out of' engagement with their wrist pins 1 2 3 4 5 6 7 e and 9 and at the same time the subtraction arms 1 2 ,3 4 ,'I5* 6 7 and 8 are shifted into engagement with the corresponding wristpins 1 2 3 4*, 5 6 7 and 8". This shifting also brings the pin-restoring arms 1*, '3, 3*, etc., 'into engagement with the \vrist pins RWV on the pln-restoring linkage 46. Such an action changes the pin-setting mechanism from a state in which it will set pins corresponding to the numeral keys actuated, to the opposite state in which it will set-pins corresponding to the 'complements of 'the numeral keys struck, using one less than the exchange value, that is nine, as the base or complete number.

As has been stated above, it is-necessary at-thist-ime to-set allof the =9 pins so that if'no number-is subtracted in any particular denominational column, the computing wheel will have a chance to rotate a complete revolution. For this purpose, each of the9 pins is provided with areduced portion or neck having shoulders on-opposite sides thereof, between which engages one end of a lever 59 pivotally mounted intermediate its ends on the associated pinbar. as at 60,' and projecting rearwardly to a point underlying the lower reach 61 of the pinaestoring linkage 46. That is to say, there is one of these levers 59 for each of the pin-bars ll', engaging the 9 pin thereof, so as to be capable of setting it and unsetting it.

Secured also to the rock shaft 54, there is provided a bail 62. which overlies all of the 9 pin levers 59 forwardly of their pivots and is swung down at an actuation of the subtraction rod 49 to set all of the 9" pins. To do this the rack bars must he raised at the same time that the bail 62 is swung dmvnivardly. The rack bars are raised concomitantly by a bail (33 universal thereto and shown in the form of a bell crank pivotally mounted at (it and having a projecting arm 65 connected to the subtraction rod 49. so that when the latter is forced rearwardly this bcllrrank bail will be rocked to raise all of the pin-bearing rack bars.

In order to accomplish the shifting of the subtraction rod 49, there is provided a subtraction key 66, which, as will be seen by reference to Fig. 7. extends transversely of the machine and is of considerable length, so that it can be readily actuated by the op erative. The key 06 is supported by a pair of spaced arms 67, which are pivotally mounted on the rod 16 on which the tabulating keys are also pivoted. It will be seen that the subtraction key 66 and its arms (37 avoid interference with the tabulating keys by passing around the same.

Secured to the subtraction key 66 by an nXlQIif-iuli (38. there is provided a thrust link (it) having a cam 70 (Figs. 4 and 7), which ram is arranged to engage a pin 71 on the subtraction rod 49 and force the subtraction rod rearwardly to set the mechanism for sub traction. The thrust rod 69 may be guided for motion in a slot 72 in a portion of the frame and may also be limited in its motion by a pin 73 thereon engaging the top of the frame.

It will thus be seen that when the subtraction key is depressed, inasmuch as the thrust link 69 is held against transverse movement, it will cam the subtraction rod 49 rearwardly and actuate the various mechanisms necessary to the changing from an accumulation for addition to an accumulation for subtraction. The subtraction key 66 is returned to its normal raised position by a spring 74 engaging one of the arms therefor.

In order to avoid the operative forgetting to actuate the subtraction key 66 when it is necessary to subtract, there is provided a numeral key lock 75, which is shown in the form of a bail secured to a rock shaft 103 and having a transverse bar 76 arranged to engage under a series of hooks 77, one of which is rovided on each of the numeral keys. 'lhls lock is provided with a spring 7 8, which normally tends to draw the transverse locking bar 76 beneath the hooks 77 so as to prevent the actuation of the numeral keys. This action of the spring 78 to move the lock to its effective position is prevented however by a latch 79 provided on a rock shaft 80. The rock shaft 80 is provided with an arm 81 which is normally held by a spring 82 in a position to cause the latch 79 to project in front of the lock 75 and thus prevent its movement to a locking position under the pull of the spring 78.

In order to release the latch 79 and thus bring about a locking movement of the lock 75 when a computing zone or column is reached in which it is desired to subtract. there is provided a trip 83, which is com nccted to be actuated from the carriage. The trip 83 is connected by a link 81 to the arm 81, so as to more the latch 70 to a releasing position, and is shown in the form of a lever pivoted intermediate its ends and having a one-way movable camming dog 85, which may be engaged bv suitably formed and arranged tappets, such as the tappets 18, which may or may not be used also for deya tcrmining the position of the typewriter carriage in a tabulating action.

The tappets 18, as will be seen by reference to Fig. 1, have a long leg 86 and a short leg 87. The tappets can be readily reversed in the rack 19, sothat either the long leg or the short leg is undermost. lVhen the long leg is undermost, the tappet is in a position to determine a subtracting zone or column when the carriage arrives at a position such that. this tappet will come into engagement with the trip 83. When the short leg of the tappet is lowermost, then the tappet 18 will be inellcctivc to control a subtracting zone or column, but may merely act as a stop to determine the position of a computing zone or column.

The cumming dog is positively stopped from movement on one side and yieldmglyiheld against movement on the other side by a spring, so that during a movement of the carriage 7 in a step-by-step direction, as illustrated in Fig. 2, the trip 83 will be actuated, and further so that durin a return. movement of the carria e, as in i 3, the subtraction tappets 18 W1 lpass idly by with-' out rockin the trip 83.

lVhen 't is locking bar 76 is brought into play, the operative is at the same time notified that a subtraction column is reached." on This is accomplished by providing an extension 88 on the lock 75, whicn has a tab 89 with the inscription Sub. thereon, which tab is projected out through a slot 90 in the frame of the machine to a position where it will be readily seen by the operative.

\Vhen the subtraction key 66 is actuated it not only sets the computing mechanism for subtraction but also moves the lock 75 no from engagement with the hooks 77, so that the numeral keys can be actuated to per form a subtracting operation. For this purpose, there is secured to one of the arms 6? of the subtraction key 66, a link 101, which llfi has a lost motion or pin-and-slot connection with an arm 102 secured to the rock shaft 103 to which the lock 75 is also secured. It is manifest that when the subtraction key 66 is actuated, it wiil swing the 121: lock 75 rearwardly withdrawing the locking bar 76 from the hooks 77, at the same time withdrawing the warning tab from view.

lVhcn a subtracting action has been com- 12: pli-tcd, it is desirable to return the computing naerhanism automatically to an adding state, as the next computing zone or column may be an adding one and it is not desired to depend on the memory of the operative to effect thechange. \Vhen the pin-setting mechanism 25 was adjusted for subtraction, a latch 92 was forced up automatically by a spring 93 to such a position that it engaged under the shifter liar Jllandheld it in a subtracting icondition against the tension of a spring SH. Now, then, when a subtraction column is ended with, the operative naturally strikes oneo'f the la'hulating keys 15 to bring, the carriage 7 to the next computing: Zone or column. l I

n actuating an one of the tabulating keys, the levers .16 thereof will come in't-oengagein'entwith arail or bar 95, which underlies all of the tabulating key-levers 16, as will -he seen by reference to Fig. 7, and is universal thereto. This universalrail or bar 95 is supported by. a pair of arms 96 secured to arock shaft 97. An arm 98 is also securedto the rock shaft 97 so as to be swung thereby, which arm is cbnnected by a link 9 to an arm 100connectecl to rockthe latch 92, whic'hflwlds the pinrsetting mechanism 25 in a subtracting condition. I i

"lit will thushe seen th t when anyof the tahulating keys actuated to move the carriage 7 to the next computing zone or column, the pin-setting mechanisinwi'll be automatically returned to its adding state.

The numbers indexed or set upby the pins for either addition or subtraction are run up onthecompntin wheels 30 in the usual manner by a cross bar 104 of a general operator 105 moving forwardly to engage the set pins and thus advance the racks 27 amounts corresponding to the pins set thereon, which racks in turn rotate the computing wheels 30. The general operator 105 may be actuated in any usual manner, as by being provided with a rank 106 driven by a. pinion 107, which in turn is driven by a segment 108 connected to be oscillated by ahandle 109. 'lens-carrying: for the computing wheels 30 may be carried on in the usual manner on the return stroke of the general operator, by means of tenscarrying mechanism indicated in general at 110.

Tn the operation of the device, the tappets or stops 18 are placed on the rack 19 at points where it is desired to have the different computing zones or columns. Vhen it is desired merely to add, the longer leg 86 of the lappet for the particular computing zone or column is placed uppermost; so that it will escape the trip 83 when the carriage passes along to bring it thereover. At such poin'ts hoivever, where it is desired to have subtracting zones .or columns. the tappets 18 are reversed in their position with the longer leg 86 undermost, so that when it comes into superposed relation with respect to the dog 95 on the trip 83, it will rock the same to bring about a locking of the numeral Ire- \Ve will assume for the purpose of Illustratiom that he first computing ZOn.- or

column is an addin o ne; the second a subtractiiig one; and tlie third an adding one. The carriage 7 is firstflirought to the extreme right and a tabulating key 515 struck to bring the carriage the initial computing zone oricolu'mri. The tapp'et1'8 located for this purpose will bring the cai'riagefo a stop at the desired point, but will 'not touch orrnove the'trip 83, so h t the numeral-keys will be free no obstruction. The nunieral keys 1 can then the actuated to wr'ite the.

drm'ost wi'll eiigage the abyss before the carriagec'omsto rest and rock the trip 83 a, as to more tli'e'latch'79 to a 'eleasing' position.-

enables theo eration of the spring .78 to bring the loc -ng bar 76 benea'th the hookj 7'l at the same time exhibiting the Sub. tab alt-the top of the machine.

If the op'eratiire does not notice the Sub. tab cdming out, he willbe prerented from actuating the numeral keys by the locking bar 76, so that he will rea'liaehe is in a subtracting zone or column and that it is necessary to actuate the subtraction key 66in order to'release the lock 75 and permit a further actuation of the numeralkeys. The operative then presses on the subtraction key 66, which, through the intermediary of the link 101 and the arm 102, rocks the shaft 103, so as to withdraw the lock 75 from on gagement with the hooks 77 against the tension of the spring 78. The tappet having in the meanwhile passed beyond the dog 8 will permit the spring 82 to return the latch 79 to its etl'ective position, such that it will hold the lock 75 in its ineffective position the latch 79 having in the meantime roster on one of the side arms of the lock 75.

The actuation of the subtraction key 66 in addition to releasing the numeral keys. of course shifted all of the pin bearing rack bars 27 temporarily to a raised position so that the universal bail 62, which at the same time was swung downwardly, could set all of the 9 pins. The rock shafts 39 were also shifted to their subtracting position and the shifter bar 56 locked in its subtracting position by the latch 92. The numeral keys 1 are then free to be actuated to write the numbers to be subtracted on the work-sheet, and at the same time setup in the nest of pins, the pins corresponding to the complements of these numbers. \Vhen all of the digits of the number to be computed are thus indexed or set up, the general operator can be again actuated to run up this number in the computing wheels.

When the general operator is returned to normal position, the parts will then be in condition for a further computing action. To bring the carriage 7 to the next computing zone or column, the operative naturally strikes one of the tabulating keys 15, whereby the carriage is not only jumped to the new zone, but in the example given, the computing mechanism will be returned to its normal adding state. That. is to say. the tabulating key 16 which is actuated, will depress the universal bar or red 95 to rock the shaft 97 and thus draw up on the link 99 to release the latch 92, permitting the spring 94 to return the rock shafts 39 and the pinsetting linkages to their addition setting relation.

Of course if the next computing zone or column should have happened to be a subtracting one instead of an adding one, the trip 83 would again be actuated to br ng the lock once more to its effective position to prevent an actuation of the numeral keys 2. That is to say, at the actuation of any of the tabulating keys, the pin-setting mechanism is automatically returned to its adding state but if the next column should happen to be a subtracting one, the locking mechanism for the numeral keys is brought immediatelyinto play, so that the operative would have to actuate the subtraction key 66 for every subtracting column desired.

Variations may be resorted to within the scope of the invention and portions of the improvements may be used without others.

Having thus described my invention, 1 claim:

1. In a computing machine adapted to compute in different zones, the combination with computing mechanism, of a traveling element to determine the zones in which computation may take place, means, under the control of the operative, for changing the state of the computing mechanism at will, at any computing zone, and means controlled by said traveling element on reaching a predetermined zone for indicating to the operative that a change in state must. be made.

2. In a computing machine adapted to compute in different zones, the combination with comput ng mechanism. of a zone-controller for determining different zones in which computation may take place. means under the control of: the operative for controlling the state of the computing merh anism in a'nv zone. and means brought into action by the zcpc-controllcr to oblige the operative when writing in any [)N'Cltttl mined computing zone to accord the char actor of computation with that particular zone.

3. A computing machine having, in combination, computing mechanism, numeral keys which may print in different zones or columns, and also control said computing mechanism, a state-controlling mechanism for said computing mechanism, and means for obliging the operative to accord the state of said computing mechanism with certain predetermined zones or columns in which printing is to take place.

4. The combination with a computing mechanism, of a series of numeral keys for actuating said computing mechanism, a traveling carriage, a series of tappets carried by said carriage, certain of said tap ets being of different form from certain oi; ers of said tappets and corresponding to different types of computation to be carried on by said computing mechanism at different points in the travel of said carriage, and means actuated automatically by the ta pets having a certain form at certain prediitermined points in the travel of said'carriage. for warning the operative that a different type of computation is necessary at said picdetermined points from that just previously carried out by said computing mechanism.

5. The combination with a computing mechanism, of a series of numeral keys for actuating said computing mechanism, a traveling carriage, a series of tappets carried by said carriage, certain of said tappets being different from certainothers of said tappets and corresponding to difierent types of computation to be carried on by said computing mechanism at difi'erent points in the travel of said carriage, and means actnated automatically by certain of said tappets for locking said numeral keys against actuation at certain predetermined points in the travel of said carriage corresponding to a change in the type of computation to be carried out, by said computing mechanism.

6. The combination with a. computimr mechanism capable of existing under a pin rality of states corresponding to different types of computation, of a key for con trolling the states of said computing mechanism, a series of numeral keys for controlling the computations of said computing mechanism. means operable automatically prior to the actuation of said state-con trolling key, for locking said numeral keys. and means operated automatically consequent upon the actuation of said state-controllim; key to release said locking means.

T. The. combination with a comput ng nn-chanism capable of existing under a plu 1 rnlitr of states corrcspondina to difl'ercnt types of computation. of a SOl'ltS of mum-m; ke for controlling the action of said com pntin; mechanism. locking means for said numeral keys, a state-controlling key for :typcs of computation, of a series of numeral keys for controlling the action of said com-- puting mechanism, means tending to normally lock said numeral keys, a state-con trolling key for varying the type of computation carried on by said computing mechanism, a traveling element, a latch normally preventingthe actuation of said l ci? lug means, automaticallywperated means forreleasing said latch at different predetermined points in the travel of said traveling element, and connections from said sta-tecontrolling key for releasing said locking means after the same has been brought into play by said traveling element on an actuation of said state-controlling; key. y

9. In a combined typewriting and computing machine, the combination with computing mechanism and typewriter numeral keys controlling said computing mechanism, of a traveling carriage to determine the zones in which computation may take place,

means, under the control of the operative,

for changing the state of the computing mechanism at will, in any computing zone, means for locking said numeral keys when a computing zone is reached in which a change of state must he made, and indicating means for indicating to the operative why said keys are locked.

10. The combination with a computing mechanism, of a traveling element, means for determining the different computing; zones or columns on traveling movements of said traveling element, a series of numeral keys for actuating said computing mechanism, locking means for said numeral keys, actuating means for said locking means operated automatically during the travel of said traveling element from certain computing zones or columns to certain other computing zones or columns. said computing mechanism being capable of existing under a plurality of different states corresponding to different types of computation, a km for controlling the change in State of said computing mechanism, and connections for releasing said locking means at an actuation of said state-controlling key.

11 The combination with a computing mochanisn'i, of a traveling carriage, tabuluting mechanism for determining the position of said carriage for different computing zones or colunnis. manually operable statecontrolling means for varying tliety'pe of computation carried on by said computing mechanism. means for holding said statecontrolling means when set by said 'manu ally operable means in a certain condition corresponding to a ccrtaintype of computation in be carried on by said cornpii ti'nfi mechanism, and means operated by said tabulating mechanism for releasing sai'fl holdingmeans. V

12. The combination with a computing mechanism capable of existing under uplarality of states corresponding to difl'erent types of computation, of a traveling element, tabulating mechanism for controlling the movements of said travelingelement for different computing zones or columns, said tabulating mechanism including a series of tabulatin'g keys, means for maintainiii' said computing mechanism 'in a certain state corresponding to a certain type of computation, and connections universal to said tabulatiiig keys and connected to said maintaining means for manipulating the same to vary the state of said computing mechanism and thus the type of computation carried on thereby at an actuation of any one of said tabulating keys.

13. The combination with a nest of pins, of pin-setting mechanism for said pins, numeral keys for actuatin said pin-setting 1 mechanism, said pin-setting mechanism being adjustable to vary the setting action thereof so as to carry on different types of computation, a latch for locking said pinsctting mechanism in a certain position of adjustment, spring means for said setting icchanism normallyrcstaincd i'rom action by said latch, a traveling carriage, tabulating mechanism for controlling the movements of said carriage for different computing zones or columns, said tabulating mechanism including .1 series of decimal keys, and

a rail universal to all of said keys and connected to said latch so as to enable the actuw tion of said spring means on the actuation of any of said tabulating keys to cause a traveling movement of said carriage from one computing zone to another.

14. The combination with a computing mechanism inclndii'ig a series of setting link- :20 ages adjustable from an addition setting con (htion to a subtraction setting condition, of a shifter bar for adjusting said linkages, a latch for said shifter bar, a spring for actuating said shifter bar and the parts conne tod thereto rcstrainable by said latch, a traveling carriage. tabulating mechanism for controlling movements of said carriage from one computing zone to another, said talmluting mechanism including a series of 1 keys, and means universal to said keys for releasin said latch at the actuation of any of said keys.

15. In a combined typcwritiug and computing machine, the combination with type writing mechanism including a traveling carriage and tabulating mechanism for controlling difl'erent positions of said carriage, of computing mechanism, numeral-printing keys for controlling said computing mechanism, manually operable state-controlling mechanism for said computing mechanism, and means acting jointly with said tabulating mechanism to determine whether on tabulating to any predetermined column the operative is free to write and compute in that column, or whether the operative must change the state of the computing mechanism at that column.

16. The combination with a computing mechanism, of numeral keys for controlling the action of said computlng mechanism, a traveling carriage movable to different definite'computing zones, said computing mechanism being capable of existing under a lurality of states corresponding to the di erent types of computation carried on thereby, locking, means for said numeral keys, and connections controlled from said car'- riage during the movements thereof from one com uting zone to another for bringing automatically into play saidlocking means when a change in the state of said computing mechanism is required to correspond with a new type of computation to be ca ried on in a new computing zone.

17. The combination with a computing mechanism, of numeral keys for controlling the action of said computing mechanism, a traveling carriage movable to different definite computing zones, said computing mechanism bein capable of existing under a plurality 0 states corresponding to the different types of computation carried on thereby, locking means for said numeral keys, connections controlled from said carriage during the movements thereof from one computing zone to another for automatically bringing into play said locking means when a change in the state of said computing mechanism is required to correspond with a new type of computation to be carried on in a new computing zone, and means for concomitantly releasing said locking means and changing the state of said computing mechanism.

18. The combination with a computing mechanism, of a state-controlling mechanism for said computing mechanism, a series of numeral keys for controlling the action of said computing mechanism a travcling carriage, locking means for said numeral keys, connections between said carriage and said locking means for antomatically operating the latter from the former to lock said numeral keys when a change in state of said computing mechanism is necessary to perform a change in the type of computation carried on in a new computing zone or column determined by said carriage during its movement, and connections between said state-controlling means and said locking means for releasing said locking means at a changing of the state of said computing mechanism.

19. The combination with a computing mechanism, of means for setting said computing mechanism for subtraction, a series of numeral keys for controlling the action of said computing mechanism, a travelin carriage, locking means for said numera keys, connections bringing said lockin means automatically into play at the arriva of said carriage into a subtraction computing column or zone, and connections between said locking means and said subtractionsetting means for concomitantly releasing said locking means with the setting of said computing mechanism for subtraction.

20. The combination with a computing mechanism, of means for setting said computing mechanism for subtraction, a series of numeral keys for controlling the action of said computing mechanism, aitraveling carriage, tabulatmg mechanism therefor, locking means for said numeral keys, connections controlled by a part of said tabulating mechanism for bringin said locking means into play at the arriva of saidrcarriage into a subtraction computing column or zone, connections between said locking means and said subtraction-setting. means for concomitantly releasing said locking means with the setting of said computing mechanism for subtraction,tabulating mech anism for determining the computing zones or columns of said carriage, and means operated by said tabulating mechanism for reverting the state of said computing mechanism to an adding state after a subtracting action has been completed in one zone or column and the carriage has been advanced by an actuation of said tabulating mechanism to another computing zone or column.

21. In a combined typewriting and computing machine, the combination with typewriting mechanism, including a traveling carriage, of computing mechanism, numeral keys for controlling the action of said carriage and computing mechanism, locking means for said numeral keys, restraining means for said locking means, state-controlling mechanism for said computing mechanism, manually operable at any zone as determined by said carriage, for changing the state of said computing mechanism. and means brought into action by said carriagc on reaching a predetermined zone For releasing said restraining means, to thereby bring said locking means into play to lock said keys, to indicate to the operative that a change in state is necessary.

22. The combination with typewriting mechanism including a carriage, of computing mechanism, numeral keys for controlling the action of said computing mechanism, locking means for said numeral keys, restraining means for said locking means, means for releasing said restraining means broughtinto action, under control of said carriage, at predetermined positions thereof to bring said locking means into play to lock said numeral keys. manual means operable at will for changing the state of said computing mechanism to change the type of computation carried on thereby, and means actuated by said state-changing means to release said locking means and permit a further actuation of said computing mechanism by said numeral keys for a new state of said computing mechanism.

23. In a combined typewriting and computing machine, the combination with typewriting mechanism, including a traveling carriage, of tabulating mechanism to control difierent columnar positions of said carria e, computing mechanism, statecontro ling mechanism for said computing mechanism freeto be operated at will in any zone or column as determined by the position of said carriage, and means obliging a manipulation of said state-controlling mechanism in a particular computing zone or zones where computation is to be performed. as determined by said tabulating mechanism.

24. In a combined typewriting and computing machine, the combination with typewriting mechanism, including a carriage, and tabulating mechanism therefor, ofcomputing mechanism, column stops for said carriage, forming part of said tabulating mechanism and capable of being set in one position or another, numeral keys for said computing mechanism, state-controlling mechanism therefor, means controlled by one of said column stops when the carriage reaches a particular zone or column for obliging the operative to change the state by locking the numeral keys, and means called into action on tabulating to another zone or column for restoring the statecontrolling mechanism to its previous condition or for again locking the keys, depending upon whether said second stop is in one position or another.

25. The combination with a computing mechanism having parts adjustable to change from adding to subtracting, of a subtraction rod. a pin on said rod, a thrust link. a cam on said thrust link engaging said pin to move said rod, and a subtraction key connected to actuate said thrust link.

26. The combination with a computing mechanism, of a series of numeral keys for controlling the action of said computing mechanism, locking means for said numeral keys, a traveling carriage, a series of ta ppets carried by said carriage, each having a long leg and a short leg, some of said long legs being uppermost and some undermost, and tripping means actuated by the undermost long legs for bringing said locking means 1nto play.

27. The combination with a computing mechanism, of a series of numeral keys for controlling the action of said computing mechanism, locking means for said numeral keys, a traveling carriage, a series of tappets carried by said'carriage, each having a long leg and a short leg,'some of said long legs being uppermost and some lowermost, tripping means .actuatedby the lowermost long legs for bringing said locking means into play, a subtraction-setting mechanism for said computing mechanism, and means for actuating saidsubtraction-setting mechanism and. releasing said locking means.

28. In a combined typewr'iting and computing machine, the f combination with numeral keys and computing wheels, of

means whereby said keys cause said wheels to either add or subtract, a latch for holding said means at subtracting position, tabulating keys, and a universal bar operated by said tabulating keys for releasing said latch.

29. Ina combined typewriting and computing machine, the combination with numeral keys and computing wheels, of settable means operable at will whereby said keys cause said wheels to either add or subtract, a latch for holding said settable means at subtracting position, tabulating keys, a universal bar operated by said tabulating keys for releasing said latch, a locking device for said numeral keys, means controlled by said tabulating keys for controlling said locking device, and means for mak* ing said locking device ineffective by the setting of said settable means for subtraction.

30. In a combined typewriting and computing machine, the combination with typewriting mechanism, including a traveling carriage and tabulating mechanism for controlling the positions of said carriage, of computing mechanism, numeral keys for controlling said computing mechanism, a subtraction key for changing the computation carried on by said computing mechanism, means acting jointly with said tabulating mechanism for locking said numeral ke s on ta uiating to certain predetermined zones or columns, to warn the operative that said subtraction kev should be operated. and means; operated by said subtraction key for releasing saic. iUCKll'lQ' means.

31. In a computing machine, the combination, with computing mechanism, and numeral keys for controlling the action thereof; of mechanism for setting; said computing mechanism for subtraction comprising a setting bar, a subtraction key, a thrust link connected to be actuated by said key, and cooperating devices on said thrust link and said bar for operating the latter when the former is actuated.

32. In a c' .nnuting machine. the combination, with computing mechanism, and numeral keys for controlling the action thereof; of mechanism for setting said computing mechanism for subtraction com rising a setting bar, a subtraction key, a tirust. ink connected to be actuated by said key, a 'cam on said thrust link, and a projection on said bar engageable by said cam for operating said bar when said link is actuated.

33. In a computing machine, the combination, with computing mechanism, and .numeral keys for controlling the action thereof; of mechanism for setting said computing mechanism Ifor subtraction comprising an endwise-movable setting bar, a subtraction ltey located thereabove, a depending thrust link 'ivoted to said key to be depressed there y, meansfor guiding said link during its movements, and cooperating devices on said link and said bar for operating the'latter when the former is depressed.

34."The combination, with :a traveling carriage; of computing mechanism; numeral keys for controllmg the action thereof: subtraction-setting mechanism for said computmg mechanism; akey for operating said setting mechanism; means for holding said setting mechanism in opcrat o or set position; tabulating mechanism for positioning said carriage; and means actuated by said tabu lating mechanism for releasing said holding means.

35. The combination, with a traveling carriage; of computing mechanism: numeral keys for controlling the action thereof; mechanism associated with said computing mechanism for setting the sam; for eomple mentary subtraction; a key for operating said setting mechanism; means for holding said setting mechanism in operated or set position; tabulating mechanism for position- .ing said carriage; and means actuated by said tabulating mechanism for releasing said holding means.

.36. :In a combined typewriting and com putingmachine, the combination with type writing n'iechanism, including a carriage, of tabulating mechanism for said carriage, including column stops and tabulating keys. computing mechanism, numeral Keys or controlling said computing mechanism, statccontrolling mechanism for said computing mechanism, manually settable at will in any computing zone or column, and .held in the set position, means brought into action by any .of said column stops when said carriage reaches a predetermined zone or column for locking said numeral keys, means brought into action on movementof said state-controlling mechanism for releasing said keys, and means brought into action on operation of any tabulating key for releasing said state-controlling mechanism.

.BURNHAM C. STICKNEY. \Vitnesses:

TITUS H. .Inous, J nuns DUCKSTINE.

Copies 0! this patent may be obtained for live cents each, by addressing the Commissioner 0! Patents.

Washington, D. C." 

